Easy Minestrone Soup with Parmesan Rind

Ingredients

• 2 slices bacon, diced or 2 tablespoons olive oil
• 1/2 cup diced onions
• 1/2 cup diced carrots
• 3 stalks celery, diced
• 2 medium zucchini, diced
• 28 oz can whole tomatoes
• 4 cups chicken broth, vegetable broth or water
• 1 parmesan cheese rind, about 1x4"
• 1 cup cauliflower rice
• 1 cup lupini beans
• 3 cups spinach leaves
• 1 teaspoon salt
• to taste pepper